SDL 3.0
SDL_stdinc.h
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1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20*/
21
22/**
23 * \file SDL_stdinc.h
24 *
25 * This is a general header that includes C language support.
26 */
27
28#ifndef SDL_stdinc_h_
29#define SDL_stdinc_h_
30
32
33#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
34#include <inttypes.h>
35#endif
36#include <stdarg.h>
37#include <stdint.h>
38#include <string.h>
39#include <wchar.h>
40
41#ifndef SDL_DISABLE_ALLOCA
42# ifndef alloca
43# ifdef HAVE_ALLOCA_H
44# include <alloca.h>
45# elif defined(SDL_PLATFORM_NETBSD)
46# if defined(__STRICT_ANSI__)
47# define SDL_DISABLE_ALLOCA
48# else
49# include <stdlib.h>
50# endif
51# elif defined(__GNUC__)
52# define alloca __builtin_alloca
53# elif defined(_MSC_VER)
54# include <malloc.h>
55# define alloca _alloca
56# elif defined(__WATCOMC__)
57# include <malloc.h>
58# elif defined(__BORLANDC__)
59# include <malloc.h>
60# elif defined(__DMC__)
61# include <stdlib.h>
62# elif defined(SDL_PLATFORM_AIX)
63# pragma alloca
64# elif defined(__MRC__)
65void *alloca(unsigned);
66# else
67char *alloca();
68# endif
69# endif
70#endif
71
72#ifdef SIZE_MAX
73# define SDL_SIZE_MAX SIZE_MAX
74#else
75# define SDL_SIZE_MAX ((size_t) -1)
76#endif
77
78/**
79 * Check if the compiler supports a given builtin.
80 * Supported by virtually all clang versions and recent gcc. Use this
81 * instead of checking the clang version if possible.
82 */
83#ifdef __has_builtin
84#define SDL_HAS_BUILTIN(x) __has_builtin(x)
85#else
86#define SDL_HAS_BUILTIN(x) 0
87#endif
88
89/**
90 * The number of elements in an array.
91 */
92#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
93#define SDL_TABLESIZE(table) SDL_arraysize(table)
94
95/**
96 * Macro useful for building other macros with strings in them
97 *
98 * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
99 */
100#define SDL_STRINGIFY_ARG(arg) #arg
101
102/**
103 * \name Cast operators
104 *
105 * Use proper C++ casts when compiled as C++ to be compatible with the option
106 * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
107 */
108/* @{ */
109#ifdef __cplusplus
110#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
111#define SDL_static_cast(type, expression) static_cast<type>(expression)
112#define SDL_const_cast(type, expression) const_cast<type>(expression)
113#else
114#define SDL_reinterpret_cast(type, expression) ((type)(expression))
115#define SDL_static_cast(type, expression) ((type)(expression))
116#define SDL_const_cast(type, expression) ((type)(expression))
117#endif
118/* @} *//* Cast operators */
119
120/* Define a four character code as a Uint32 */
121#define SDL_FOURCC(A, B, C, D) \
122 ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
123 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
124 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
125 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
126
127/**
128 * \name Basic data types
129 */
130/* @{ */
131
132/**
133 * A boolean type.
134 */
135#define SDL_FALSE 0
136#define SDL_TRUE 1
137typedef int SDL_bool;
138
139/**
140 * A signed 8-bit integer type.
141 */
142#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */
143#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */
144typedef int8_t Sint8;
145/**
146 * An unsigned 8-bit integer type.
147 */
148#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */
149#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */
150typedef uint8_t Uint8;
151/**
152 * A signed 16-bit integer type.
153 */
154#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */
155#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */
156typedef int16_t Sint16;
157/**
158 * An unsigned 16-bit integer type.
159 */
160#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */
161#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */
162typedef uint16_t Uint16;
163/**
164 * A signed 32-bit integer type.
165 */
166#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */
167#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
168typedef int32_t Sint32;
169/**
170 * An unsigned 32-bit integer type.
171 */
172#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */
173#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */
174typedef uint32_t Uint32;
175
176/**
177 * A signed 64-bit integer type.
178 */
179#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
180#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
181typedef int64_t Sint64;
182/**
183 * An unsigned 64-bit integer type.
184 */
185#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
186#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */
187typedef uint64_t Uint64;
188
189/* @} *//* Basic data types */
190
191/**
192 * \name Floating-point constants
193 */
194/* @{ */
195
196#ifdef FLT_EPSILON
197#define SDL_FLT_EPSILON FLT_EPSILON
198#else
199#define SDL_FLT_EPSILON 1.1920928955078125e-07F /* 0x0.000002p0 */
200#endif
201
202/* @} *//* Floating-point constants */
203
204/* Make sure we have macros for printing width-based integers.
205 * <stdint.h> should define these but this is not true all platforms.
206 * (for example win32) */
207#ifndef SDL_PRIs64
208#ifdef PRIs64
209#define SDL_PRIs64 PRIs64
210#elif defined(SDL_PLATFORM_WIN32) || defined(SDL_PLATFORM_GDK)
211#define SDL_PRIs64 "I64d"
212#elif defined(__LP64__) && !defined(SDL_PLATFORM_APPLE)
213#define SDL_PRIs64 "ld"
214#else
215#define SDL_PRIs64 "lld"
216#endif
217#endif
218#ifndef SDL_PRIu64
219#ifdef PRIu64
220#define SDL_PRIu64 PRIu64
221#elif defined(SDL_PLATFORM_WIN32) || defined(SDL_PLATFORM_GDK)
222#define SDL_PRIu64 "I64u"
223#elif defined(__LP64__) && !defined(SDL_PLATFORM_APPLE)
224#define SDL_PRIu64 "lu"
225#else
226#define SDL_PRIu64 "llu"
227#endif
228#endif
229#ifndef SDL_PRIx64
230#ifdef PRIx64
231#define SDL_PRIx64 PRIx64
232#elif defined(SDL_PLATFORM_WIN32) || defined(SDL_PLATFORM_GDK)
233#define SDL_PRIx64 "I64x"
234#elif defined(__LP64__) && !defined(SDL_PLATFORM_APPLE)
235#define SDL_PRIx64 "lx"
236#else
237#define SDL_PRIx64 "llx"
238#endif
239#endif
240#ifndef SDL_PRIX64
241#ifdef PRIX64
242#define SDL_PRIX64 PRIX64
243#elif defined(SDL_PLATFORM_WIN32) || defined(SDL_PLATFORM_GDK)
244#define SDL_PRIX64 "I64X"
245#elif defined(__LP64__) && !defined(SDL_PLATFORM_APPLE)
246#define SDL_PRIX64 "lX"
247#else
248#define SDL_PRIX64 "llX"
249#endif
250#endif
251#ifndef SDL_PRIs32
252#ifdef PRId32
253#define SDL_PRIs32 PRId32
254#else
255#define SDL_PRIs32 "d"
256#endif
257#endif
258#ifndef SDL_PRIu32
259#ifdef PRIu32
260#define SDL_PRIu32 PRIu32
261#else
262#define SDL_PRIu32 "u"
263#endif
264#endif
265#ifndef SDL_PRIx32
266#ifdef PRIx32
267#define SDL_PRIx32 PRIx32
268#else
269#define SDL_PRIx32 "x"
270#endif
271#endif
272#ifndef SDL_PRIX32
273#ifdef PRIX32
274#define SDL_PRIX32 PRIX32
275#else
276#define SDL_PRIX32 "X"
277#endif
278#endif
279
280/* Annotations to help code analysis tools */
281#ifdef SDL_DISABLE_ANALYZE_MACROS
282#define SDL_IN_BYTECAP(x)
283#define SDL_INOUT_Z_CAP(x)
284#define SDL_OUT_Z_CAP(x)
285#define SDL_OUT_CAP(x)
286#define SDL_OUT_BYTECAP(x)
287#define SDL_OUT_Z_BYTECAP(x)
288#define SDL_PRINTF_FORMAT_STRING
289#define SDL_SCANF_FORMAT_STRING
290#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
291#define SDL_PRINTF_VARARG_FUNCV( fmtargnumber )
292#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
293#define SDL_SCANF_VARARG_FUNCV( fmtargnumber )
294#define SDL_WPRINTF_VARARG_FUNC( fmtargnumber )
295#define SDL_WSCANF_VARARG_FUNC( fmtargnumber )
296#else
297#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
298#include <sal.h>
299
300#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
301#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
302#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
303#define SDL_OUT_CAP(x) _Out_cap_(x)
304#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
305#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
306
307#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
308#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
309#else
310#define SDL_IN_BYTECAP(x)
311#define SDL_INOUT_Z_CAP(x)
312#define SDL_OUT_Z_CAP(x)
313#define SDL_OUT_CAP(x)
314#define SDL_OUT_BYTECAP(x)
315#define SDL_OUT_Z_BYTECAP(x)
316#define SDL_PRINTF_FORMAT_STRING
317#define SDL_SCANF_FORMAT_STRING
318#endif
319#ifdef __GNUC__
320#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
321#define SDL_PRINTF_VARARG_FUNCV( fmtargnumber ) __attribute__(( format( __printf__, fmtargnumber, 0 )))
322#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
323#define SDL_SCANF_VARARG_FUNCV( fmtargnumber ) __attribute__(( format( __scanf__, fmtargnumber, 0 )))
324#define SDL_WPRINTF_VARARG_FUNC( fmtargnumber ) /* __attribute__ (( format( __wprintf__, fmtargnumber, fmtargnumber+1 ))) */
325#define SDL_WSCANF_VARARG_FUNC( fmtargnumber ) /* __attribute__ (( format( __wscanf__, fmtargnumber, fmtargnumber+1 ))) */
326#else
327#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
328#define SDL_PRINTF_VARARG_FUNCV( fmtargnumber )
329#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
330#define SDL_SCANF_VARARG_FUNCV( fmtargnumber )
331#define SDL_WPRINTF_VARARG_FUNC( fmtargnumber )
332#define SDL_WSCANF_VARARG_FUNC( fmtargnumber )
333#endif
334#endif /* SDL_DISABLE_ANALYZE_MACROS */
335
336#ifndef SDL_COMPILE_TIME_ASSERT
337#ifdef __cplusplus
338#if (__cplusplus >= 201103L)
339#define SDL_COMPILE_TIME_ASSERT(name, x) static_assert(x, #x)
340#endif
341#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
342#define SDL_COMPILE_TIME_ASSERT(name, x) _Static_assert(x, #x)
343#endif
344#endif /* !SDL_COMPILE_TIME_ASSERT */
345
346#ifndef SDL_COMPILE_TIME_ASSERT
347/* universal, but may trigger -Wunused-local-typedefs */
348#define SDL_COMPILE_TIME_ASSERT(name, x) \
349 typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
350#endif
351
352/** \cond */
353#ifndef DOXYGEN_SHOULD_IGNORE_THIS
354SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
355SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
356SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
357SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
358SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
359SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
360SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
361SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
362#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
363/** \endcond */
364
365/* Check to make sure enums are the size of ints, for structure packing.
366 For both Watcom C/C++ and Borland C/C++ the compiler option that makes
367 enums having the size of an int must be enabled.
368 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
369*/
370
371/** \cond */
372#ifndef DOXYGEN_SHOULD_IGNORE_THIS
373#if !defined(SDL_PLATFORM_ANDROID) && !defined(SDL_PLATFORM_VITA) && !defined(SDL_PLATFORM_3DS)
374 /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
375typedef enum
376{
377 DUMMY_ENUM_VALUE
378} SDL_DUMMY_ENUM;
379
380SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
381#endif
382#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
383/** \endcond */
384
385#include <SDL3/SDL_begin_code.h>
386/* Set up for C function definitions, even when using C++ */
387#ifdef __cplusplus
388extern "C" {
389#endif
390
391#ifndef SDL_DISABLE_ALLOCA
392#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
393#define SDL_stack_free(data)
394#else
395#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
396#define SDL_stack_free(data) SDL_free(data)
397#endif
398
399extern DECLSPEC SDL_MALLOC void *SDLCALL SDL_malloc(size_t size);
400extern DECLSPEC SDL_MALLOC SDL_ALLOC_SIZE2(1, 2) void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
401extern DECLSPEC SDL_ALLOC_SIZE(2) void *SDLCALL SDL_realloc(void *mem, size_t size);
402extern DECLSPEC void SDLCALL SDL_free(void *mem);
403
404typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
405typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
406typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
407typedef void (SDLCALL *SDL_free_func)(void *mem);
408
409/**
410 * Get the original set of SDL memory functions
411 *
412 * \param malloc_func filled with malloc function
413 * \param calloc_func filled with calloc function
414 * \param realloc_func filled with realloc function
415 * \param free_func filled with free function
416 *
417 * \since This function is available since SDL 3.0.0.
418 */
419extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func,
420 SDL_calloc_func *calloc_func,
421 SDL_realloc_func *realloc_func,
422 SDL_free_func *free_func);
423
424/**
425 * Get the current set of SDL memory functions
426 *
427 * \param malloc_func filled with malloc function
428 * \param calloc_func filled with calloc function
429 * \param realloc_func filled with realloc function
430 * \param free_func filled with free function
431 *
432 * \since This function is available since SDL 3.0.0.
433 */
434extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
435 SDL_calloc_func *calloc_func,
436 SDL_realloc_func *realloc_func,
437 SDL_free_func *free_func);
438
439/**
440 * Replace SDL's memory allocation functions with a custom set
441 *
442 * \param malloc_func custom malloc function
443 * \param calloc_func custom calloc function
444 * \param realloc_func custom realloc function
445 * \param free_func custom free function
446 * \returns 0 on success or a negative error code on failure; call
447 * SDL_GetError() for more information.
448 *
449 * \since This function is available since SDL 3.0.0.
450 */
451extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
452 SDL_calloc_func calloc_func,
453 SDL_realloc_func realloc_func,
454 SDL_free_func free_func);
455
456/**
457 * Allocate memory aligned to a specific value
458 *
459 * If `alignment` is less than the size of `void *`, then it will be increased
460 * to match that.
461 *
462 * The returned memory address will be a multiple of the alignment value, and
463 * the amount of memory allocated will be a multiple of the alignment value.
464 *
465 * The memory returned by this function must be freed with SDL_aligned_free()
466 *
467 * \param alignment the alignment requested
468 * \param size the size to allocate
469 * \returns a pointer to the aligned memory
470 *
471 * \since This function is available since SDL 3.0.0.
472 *
473 * \sa SDL_aligned_free
474 */
475extern DECLSPEC SDL_MALLOC void *SDLCALL SDL_aligned_alloc(size_t alignment, size_t size);
476
477/**
478 * Free memory allocated by SDL_aligned_alloc()
479 *
480 * \since This function is available since SDL 3.0.0.
481 *
482 * \sa SDL_aligned_alloc
483 */
484extern DECLSPEC void SDLCALL SDL_aligned_free(void *mem);
485
486/**
487 * Get the number of outstanding (unfreed) allocations
488 *
489 * \returns the number of allocations
490 *
491 * \since This function is available since SDL 3.0.0.
492 */
493extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
494
495extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
496extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
497
498extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
499extern DECLSPEC void * SDLCALL SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
500
501extern DECLSPEC int SDLCALL SDL_abs(int x);
502
503/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
504#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
505#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
506#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
507
508extern DECLSPEC int SDLCALL SDL_isalpha(int x);
509extern DECLSPEC int SDLCALL SDL_isalnum(int x);
510extern DECLSPEC int SDLCALL SDL_isblank(int x);
511extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
512extern DECLSPEC int SDLCALL SDL_isdigit(int x);
513extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
514extern DECLSPEC int SDLCALL SDL_ispunct(int x);
515extern DECLSPEC int SDLCALL SDL_isspace(int x);
516extern DECLSPEC int SDLCALL SDL_isupper(int x);
517extern DECLSPEC int SDLCALL SDL_islower(int x);
518extern DECLSPEC int SDLCALL SDL_isprint(int x);
519extern DECLSPEC int SDLCALL SDL_isgraph(int x);
520extern DECLSPEC int SDLCALL SDL_toupper(int x);
521extern DECLSPEC int SDLCALL SDL_tolower(int x);
522
523extern DECLSPEC Uint16 SDLCALL SDL_crc16(Uint16 crc, const void *data, size_t len);
524extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
525
526extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
527
528/* Take advantage of compiler optimizations for memcpy */
529#ifndef SDL_SLOW_MEMCPY
530#ifdef SDL_memcpy
531#undef SDL_memcpy
532#endif
533#define SDL_memcpy memcpy
534#endif
535
536#define SDL_copyp(dst, src) \
537 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
538 SDL_memcpy((dst), (src), sizeof(*(src)))
539
540extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
541
542/* Take advantage of compiler optimizations for memmove */
543#ifndef SDL_SLOW_MEMMOVE
544#ifdef SDL_memmove
545#undef SDL_memmove
546#endif
547#define SDL_memmove memmove
548#endif
549
550extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
551extern DECLSPEC void *SDLCALL SDL_memset4(void *dst, Uint32 val, size_t dwords);
552
553/* Take advantage of compiler optimizations for memset */
554#ifndef SDL_SLOW_MEMSET
555#ifdef SDL_memset
556#undef SDL_memset
557#endif
558#define SDL_memset memset
559#endif
560
561#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
562#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
563#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
564
565extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
566
567extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
568extern DECLSPEC size_t SDLCALL SDL_wcsnlen(const wchar_t *wstr, size_t maxlen);
569extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
570extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
571extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
572extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
573extern DECLSPEC wchar_t *SDLCALL SDL_wcsnstr(const wchar_t *haystack, const wchar_t *needle, size_t maxlen);
574
575extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
576extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
577extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
578extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
579extern DECLSPEC long SDLCALL SDL_wcstol(const wchar_t *str, wchar_t **endp, int base);
580
581extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
582extern DECLSPEC size_t SDLCALL SDL_strnlen(const char *str, size_t maxlen);
583extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
584extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
585extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
586extern DECLSPEC SDL_MALLOC char *SDLCALL SDL_strdup(const char *str);
587extern DECLSPEC SDL_MALLOC char *SDLCALL SDL_strndup(const char *str, size_t maxlen);
588extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
589extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
590extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
591extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
592extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
593extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
594extern DECLSPEC char *SDLCALL SDL_strnstr(const char *haystack, const char *needle, size_t maxlen);
595extern DECLSPEC char *SDLCALL SDL_strcasestr(const char *haystack, const char *needle);
596extern DECLSPEC char *SDLCALL SDL_strtok_r(char *s1, const char *s2, char **saveptr);
597extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
598extern DECLSPEC size_t SDLCALL SDL_utf8strnlen(const char *str, size_t bytes);
599
600extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
601extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
602extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
603extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
604extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
605extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
606
607extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
608extern DECLSPEC double SDLCALL SDL_atof(const char *str);
609extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
610extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
611extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
612extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
613extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
614
615extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
616extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
617extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
618extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
619
620extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
621extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, va_list ap) SDL_SCANF_VARARG_FUNCV(2);
622extern DECLSPEC int SDLCALL SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, ... ) SDL_PRINTF_VARARG_FUNC(3);
623extern DECLSPEC int SDLCALL SDL_swprintf(SDL_OUT_Z_CAP(maxlen) wchar_t *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const wchar_t *fmt, ... ) SDL_WPRINTF_VARARG_FUNC(3);
624extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(3);
625extern DECLSPEC int SDLCALL SDL_vswprintf(SDL_OUT_Z_CAP(maxlen) wchar_t *text, size_t maxlen, const wchar_t *fmt, va_list ap);
626extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
627extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2);
628
629#ifndef SDL_PI_D
630#define SDL_PI_D 3.141592653589793238462643383279502884 /**< pi (double) */
631#endif
632#ifndef SDL_PI_F
633#define SDL_PI_F 3.141592653589793238462643383279502884F /**< pi (float) */
634#endif
635
636/**
637 * Use this function to compute arc cosine of `x`.
638 *
639 * The definition of `y = acos(x)` is `x = cos(y)`.
640 *
641 * Domain: `-1 <= x <= 1`
642 *
643 * Range: `0 <= y <= Pi`
644 *
645 * \param x floating point value, in radians.
646 * \returns arc cosine of `x`.
647 *
648 * \since This function is available since SDL 3.0.0.
649 */
650extern DECLSPEC double SDLCALL SDL_acos(double x);
651extern DECLSPEC float SDLCALL SDL_acosf(float x);
652extern DECLSPEC double SDLCALL SDL_asin(double x);
653extern DECLSPEC float SDLCALL SDL_asinf(float x);
654extern DECLSPEC double SDLCALL SDL_atan(double x);
655extern DECLSPEC float SDLCALL SDL_atanf(float x);
656extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
657extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
658extern DECLSPEC double SDLCALL SDL_ceil(double x);
659extern DECLSPEC float SDLCALL SDL_ceilf(float x);
660extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
661extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
662extern DECLSPEC double SDLCALL SDL_cos(double x);
663extern DECLSPEC float SDLCALL SDL_cosf(float x);
664extern DECLSPEC double SDLCALL SDL_exp(double x);
665extern DECLSPEC float SDLCALL SDL_expf(float x);
666extern DECLSPEC double SDLCALL SDL_fabs(double x);
667extern DECLSPEC float SDLCALL SDL_fabsf(float x);
668extern DECLSPEC double SDLCALL SDL_floor(double x);
669extern DECLSPEC float SDLCALL SDL_floorf(float x);
670extern DECLSPEC double SDLCALL SDL_trunc(double x);
671extern DECLSPEC float SDLCALL SDL_truncf(float x);
672extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
673extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
674extern DECLSPEC double SDLCALL SDL_log(double x);
675extern DECLSPEC float SDLCALL SDL_logf(float x);
676extern DECLSPEC double SDLCALL SDL_log10(double x);
677extern DECLSPEC float SDLCALL SDL_log10f(float x);
678extern DECLSPEC double SDLCALL SDL_modf(double x, double *y);
679extern DECLSPEC float SDLCALL SDL_modff(float x, float *y);
680extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
681extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
682extern DECLSPEC double SDLCALL SDL_round(double x);
683extern DECLSPEC float SDLCALL SDL_roundf(float x);
684extern DECLSPEC long SDLCALL SDL_lround(double x);
685extern DECLSPEC long SDLCALL SDL_lroundf(float x);
686extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
687extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
688extern DECLSPEC double SDLCALL SDL_sin(double x);
689extern DECLSPEC float SDLCALL SDL_sinf(float x);
690extern DECLSPEC double SDLCALL SDL_sqrt(double x);
691extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
692extern DECLSPEC double SDLCALL SDL_tan(double x);
693extern DECLSPEC float SDLCALL SDL_tanf(float x);
694
695/* The SDL implementation of iconv() returns these error codes */
696#define SDL_ICONV_ERROR (size_t)-1
697#define SDL_ICONV_E2BIG (size_t)-2
698#define SDL_ICONV_EILSEQ (size_t)-3
699#define SDL_ICONV_EINVAL (size_t)-4
700
701/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
702typedef struct SDL_iconv_data_t *SDL_iconv_t;
703extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
704 const char *fromcode);
705extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
706extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
707 size_t * inbytesleft, char **outbuf,
708 size_t * outbytesleft);
709
710/**
711 * This function converts a buffer or string between encodings in one pass,
712 * returning a string that must be freed with SDL_free() or NULL on error.
713 *
714 * \since This function is available since SDL 3.0.0.
715 */
716extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
717 const char *fromcode,
718 const char *inbuf,
719 size_t inbytesleft);
720#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
721#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
722#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
723#define SDL_iconv_wchar_utf8(S) SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
724
725/* force builds using Clang's static analysis tools to use literal C runtime
726 here, since there are possibly tests that are ineffective otherwise. */
727#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
728
729/* The analyzer knows about strlcpy even when the system doesn't provide it */
730#if !defined(HAVE_STRLCPY) && !defined(strlcpy)
731size_t strlcpy(char* dst, const char* src, size_t size);
732#endif
733
734/* The analyzer knows about strlcat even when the system doesn't provide it */
735#if !defined(HAVE_STRLCAT) && !defined(strlcat)
736size_t strlcat(char* dst, const char* src, size_t size);
737#endif
738
739#if !defined(HAVE_WCSLCPY) && !defined(wcslcpy)
740size_t wcslcpy(wchar_t *dst, const wchar_t *src, size_t size);
741#endif
742
743#if !defined(HAVE_WCSLCAT) && !defined(wcslcat)
744size_t wcslcat(wchar_t *dst, const wchar_t *src, size_t size);
745#endif
746
747/* Starting LLVM 16, the analyser errors out if these functions do not have
748 their prototype defined (clang-diagnostic-implicit-function-declaration) */
749#include <stdlib.h>
750#include <stdio.h>
751
752#define SDL_malloc malloc
753#define SDL_calloc calloc
754#define SDL_realloc realloc
755#define SDL_free free
756#ifndef SDL_memcpy
757#define SDL_memcpy memcpy
758#endif
759#ifndef SDL_memmove
760#define SDL_memmove memmove
761#endif
762#ifndef SDL_memset
763#define SDL_memset memset
764#endif
765#define SDL_memcmp memcmp
766#define SDL_strlcpy strlcpy
767#define SDL_strlcat strlcat
768#define SDL_strlen strlen
769#define SDL_wcslen wcslen
770#define SDL_wcslcpy wcslcpy
771#define SDL_wcslcat wcslcat
772#define SDL_strdup strdup
773#define SDL_wcsdup wcsdup
774#define SDL_strchr strchr
775#define SDL_strrchr strrchr
776#define SDL_strstr strstr
777#define SDL_wcsstr wcsstr
778#define SDL_strtok_r strtok_r
779#define SDL_strcmp strcmp
780#define SDL_wcscmp wcscmp
781#define SDL_strncmp strncmp
782#define SDL_wcsncmp wcsncmp
783#define SDL_strcasecmp strcasecmp
784#define SDL_strncasecmp strncasecmp
785#define SDL_sscanf sscanf
786#define SDL_vsscanf vsscanf
787#define SDL_snprintf snprintf
788#define SDL_vsnprintf vsnprintf
789#endif
790
791/**
792 * If a * b would overflow, return -1. Otherwise store a * b via ret
793 * and return 0.
794 *
795 * \since This function is available since SDL 3.0.0.
796 */
798 size_t b,
799 size_t *ret)
800{
801 if (a != 0 && b > SDL_SIZE_MAX / a) {
802 return -1;
803 }
804 *ret = a * b;
805 return 0;
806}
807
808#if SDL_HAS_BUILTIN(__builtin_mul_overflow)
809/* This needs to be wrapped in an inline rather than being a direct #define,
810 * because __builtin_mul_overflow() is type-generic, but we want to be
811 * consistent about interpreting a and b as size_t. */
812SDL_FORCE_INLINE int SDL_size_mul_overflow_builtin (size_t a,
813 size_t b,
814 size_t *ret)
815{
816 return __builtin_mul_overflow(a, b, ret) == 0 ? 0 : -1;
817}
818#define SDL_size_mul_overflow(a, b, ret) (SDL_size_mul_overflow_builtin(a, b, ret))
819#endif
820
821/**
822 * If a + b would overflow, return -1. Otherwise store a + b via ret
823 * and return 0.
824 *
825 * \since This function is available since SDL 3.0.0.
826 */
828 size_t b,
829 size_t *ret)
830{
831 if (b > SDL_SIZE_MAX - a) {
832 return -1;
833 }
834 *ret = a + b;
835 return 0;
836}
837
838#if SDL_HAS_BUILTIN(__builtin_add_overflow)
839/* This needs to be wrapped in an inline rather than being a direct #define,
840 * the same as the call to __builtin_mul_overflow() above. */
841SDL_FORCE_INLINE int SDL_size_add_overflow_builtin (size_t a,
842 size_t b,
843 size_t *ret)
844{
845 return __builtin_add_overflow(a, b, ret) == 0 ? 0 : -1;
846}
847#define SDL_size_add_overflow(a, b, ret) (SDL_size_add_overflow_builtin(a, b, ret))
848#endif
849
850/* This is a generic function pointer which should be cast to the type you expect */
851#ifdef SDL_FUNCTION_POINTER_IS_VOID_POINTER
852typedef void *SDL_FunctionPointer;
853#else
854typedef void (*SDL_FunctionPointer)(void);
855#endif
856
857/* Ends C function definitions when using C++ */
858#ifdef __cplusplus
859}
860#endif
861#include <SDL3/SDL_close_code.h>
862
863#endif /* SDL_stdinc_h_ */
#define SDL_ALLOC_SIZE(p)
#define SDL_ALLOC_SIZE2(p1, p2)
#define SDL_FORCE_INLINE
#define SDL_MALLOC
wchar_t * SDL_wcsdup(const wchar_t *wstr)
double SDL_sqrt(double x)
int SDL_atoi(const char *str)
#define SDL_memset
Definition SDL_stdinc.h:558
SDL_iconv_t SDL_iconv_open(const char *tocode, const char *fromcode)
float SDL_tanf(float x)
char * SDL_strtok_r(char *s1, const char *s2, char **saveptr)
int SDL_isspace(int x)
int SDL_isalnum(int x)
char * SDL_strlwr(char *str)
struct SDL_iconv_data_t * SDL_iconv_t
Definition SDL_stdinc.h:702
wchar_t * SDL_wcsnstr(const wchar_t *haystack, const wchar_t *needle, size_t maxlen)
int SDL_tolower(int x)
float SDL_modff(float x, float *y)
double SDL_modf(double x, double *y)
int SDL_abs(int x)
char * alloca()
size_t SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
double SDL_tan(double x)
uint8_t Uint8
Definition SDL_stdinc.h:150
char * SDL_ltoa(long value, char *str, int radix)
int SDL_isxdigit(int x)
float SDL_ceilf(float x)
int64_t Sint64
Definition SDL_stdinc.h:181
void SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func, SDL_calloc_func *calloc_func, SDL_realloc_func *realloc_func, SDL_free_func *free_func)
void *(* SDL_malloc_func)(size_t size)
Definition SDL_stdinc.h:404
#define SDL_OUT_BYTECAP(x)
Definition SDL_stdinc.h:314
char * SDL_strrchr(const char *str, int c)
#define SDL_SIZE_MAX
Definition SDL_stdinc.h:75
int SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen)
uint16_t Uint16
Definition SDL_stdinc.h:162
int SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt,...) SDL_SCANF_VARARG_FUNC(2)
void SDL_qsort(void *base, size_t nmemb, size_t size, int(*compare)(const void *, const void *))
float SDL_atanf(float x)
int SDL_isprint(int x)
#define SDL_PRINTF_VARARG_FUNCV(fmtargnumber)
Definition SDL_stdinc.h:328
int SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len)
char * SDL_itoa(int value, char *str, int radix)
float SDL_copysignf(float x, float y)
SDL_MALLOC char * SDL_strndup(const char *str, size_t maxlen)
char * SDL_strupr(char *str)
float SDL_acosf(float x)
int SDL_SetMemoryFunctions(SDL_malloc_func malloc_func, SDL_calloc_func calloc_func, SDL_realloc_func realloc_func, SDL_free_func free_func)
size_t SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
SDL_FORCE_INLINE int SDL_size_mul_overflow(size_t a, size_t b, size_t *ret)
Definition SDL_stdinc.h:797
int SDL_strncmp(const char *str1, const char *str2, size_t maxlen)
char * SDL_strchr(const char *str, int c)
SDL_MALLOC void * SDL_aligned_alloc(size_t alignment, size_t size)
#define SDL_IN_BYTECAP(x)
Definition SDL_stdinc.h:310
int SDL_vasprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2)
char * SDL_uitoa(unsigned int value, char *str, int radix)
int SDL_isalpha(int x)
double SDL_round(double x)
long SDL_lround(double x)
int SDL_isdigit(int x)
int SDL_isblank(int x)
size_t SDL_strnlen(const char *str, size_t maxlen)
int SDL_iconv_close(SDL_iconv_t cd)
double SDL_sin(double x)
char * SDL_strcasestr(const char *haystack, const char *needle)
float SDL_scalbnf(float x, int n)
double SDL_pow(double x, double y)
size_t SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes)
float SDL_asinf(float x)
double SDL_asin(double x)
double SDL_acos(double x)
int8_t Sint8
Definition SDL_stdinc.h:144
wchar_t * SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle)
float SDL_sinf(float x)
int SDL_swprintf(SDL_OUT_Z_CAP(maxlen) wchar_t *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const wchar_t *fmt,...) SDL_WPRINTF_VARARG_FUNC(3)
int SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(3)
#define SDL_SCANF_VARARG_FUNCV(fmtargnumber)
Definition SDL_stdinc.h:330
double SDL_ceil(double x)
size_t SDL_utf8strnlen(const char *str, size_t bytes)
int SDL_strcasecmp(const char *str1, const char *str2)
void * SDL_memset4(void *dst, Uint32 val, size_t dwords)
#define SDL_SCANF_FORMAT_STRING
Definition SDL_stdinc.h:317
char * SDL_strstr(const char *haystack, const char *needle)
int SDL_GetNumAllocations(void)
double SDL_exp(double x)
size_t SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
double SDL_atan(double x)
float SDL_sqrtf(float x)
size_t SDL_wcslen(const wchar_t *wstr)
int32_t Sint32
Definition SDL_stdinc.h:168
int SDL_setenv(const char *name, const char *value, int overwrite)
size_t SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
#define SDL_INOUT_Z_CAP(x)
Definition SDL_stdinc.h:311
double SDL_scalbn(double x, int n)
char * SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft)
int SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2)
char * SDL_getenv(const char *name)
double SDL_fmod(double x, double y)
char * SDL_lltoa(Sint64 value, char *str, int radix)
double SDL_fabs(double x)
Sint64 SDL_strtoll(const char *str, char **endp, int base)
int SDL_ispunct(int x)
float SDL_truncf(float x)
double SDL_log10(double x)
SDL_MALLOC size_t size
Definition SDL_stdinc.h:400
float SDL_expf(float x)
char * SDL_strrev(char *str)
double SDL_floor(double x)
int SDL_wcscmp(const wchar_t *str1, const wchar_t *str2)
long SDL_strtol(const char *str, char **endp, int base)
Uint32 SDL_crc32(Uint32 crc, const void *data, size_t len)
int SDL_islower(int x)
void SDL_aligned_free(void *mem)
float SDL_logf(float x)
int SDL_bool
Definition SDL_stdinc.h:137
float SDL_log10f(float x)
void(* SDL_free_func)(void *mem)
Definition SDL_stdinc.h:407
int SDL_memcmp(const void *s1, const void *s2, size_t len)
char * SDL_ulltoa(Uint64 value, char *str, int radix)
int16_t Sint16
Definition SDL_stdinc.h:156
float SDL_roundf(float x)
double SDL_strtod(const char *str, char **endp)
long SDL_lroundf(float x)
char * SDL_ultoa(unsigned long value, char *str, int radix)
double SDL_atof(const char *str)
char * SDL_strnstr(const char *haystack, const char *needle, size_t maxlen)
size_t SDL_wcsnlen(const wchar_t *wstr, size_t maxlen)
unsigned long SDL_strtoul(const char *str, char **endp, int base)
float SDL_floorf(float x)
int SDL_strcmp(const char *str1, const char *str2)
SDL_FORCE_INLINE int SDL_size_add_overflow(size_t a, size_t b, size_t *ret)
Definition SDL_stdinc.h:827
double SDL_cos(double x)
#define SDL_PRINTF_FORMAT_STRING
Definition SDL_stdinc.h:316
float SDL_fmodf(float x, float y)
int SDL_vswprintf(SDL_OUT_Z_CAP(maxlen) wchar_t *text, size_t maxlen, const wchar_t *fmt, va_list ap)
void SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func, SDL_calloc_func *calloc_func, SDL_realloc_func *realloc_func, SDL_free_func *free_func)
SDL_MALLOC void * SDL_malloc(size_t size)
#define SDL_PRINTF_VARARG_FUNC(fmtargnumber)
Definition SDL_stdinc.h:327
#define SDL_COMPILE_TIME_ASSERT(name, x)
Definition SDL_stdinc.h:348
float SDL_atan2f(float y, float x)
int SDL_isupper(int x)
long SDL_wcstol(const wchar_t *str, wchar_t **endp, int base)
float SDL_fabsf(float x)
uint64_t Uint64
Definition SDL_stdinc.h:187
SDL_MALLOC char * SDL_strdup(const char *str)
int SDL_iscntrl(int x)
#define SDL_memcpy
Definition SDL_stdinc.h:533
void SDL_free(void *mem)
void *(* SDL_calloc_func)(size_t nmemb, size_t size)
Definition SDL_stdinc.h:405
#define SDL_SCANF_VARARG_FUNC(fmtargnumber)
Definition SDL_stdinc.h:329
double SDL_atan2(double y, double x)
double SDL_log(double x)
void(* SDL_FunctionPointer)(void)
Definition SDL_stdinc.h:854
int SDL_toupper(int x)
uint32_t Uint32
Definition SDL_stdinc.h:174
float SDL_powf(float x, float y)
size_t SDL_strlen(const char *str)
#define SDL_memmove
Definition SDL_stdinc.h:547
Uint16 SDL_crc16(Uint16 crc, const void *data, size_t len)
int SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt,...) SDL_PRINTF_VARARG_FUNC(3)
float SDL_cosf(float x)
void * SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int(*compare)(const void *, const void *))
size_t SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
double SDL_copysign(double x, double y)
int SDL_vsscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, va_list ap) SDL_SCANF_VARARG_FUNCV(2)
void *(* SDL_realloc_func)(void *mem, size_t size)
Definition SDL_stdinc.h:406
size_t SDL_utf8strlen(const char *str)
int SDL_isgraph(int x)
int SDL_strncasecmp(const char *str1, const char *str2, size_t len)
int SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt,...) SDL_PRINTF_VARARG_FUNC(2)
#define SDL_OUT_Z_CAP(x)
Definition SDL_stdinc.h:312
#define SDL_WPRINTF_VARARG_FUNC(fmtargnumber)
Definition SDL_stdinc.h:331
Uint64 SDL_strtoull(const char *str, char **endp, int base)
double SDL_trunc(double x)